NSN 4820-01-251-7516 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-251-7516. Manufacturer of record part number: 4182X9.
Manufacturer of record: Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris
Identification
NSN: 4820-01-251-7516
NIIN: 012517516
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 4182X9
Manufacturer: Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris
General Description
The Guide,valve Stem, cataloged under National Stock Number 4820-01-251-7516, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-01-251-7516
Primary Part Number
4182X9
Item Name
Guide,valve Stem
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris
Status
ACTIVE
Material
STEEL CORROSION RESISTING
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items5
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-251-75293405X6POSSIBLE MATCH
RETAINER,DISK,VALVE
Possible match (shared part number)Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris
4820-01-251-82921472X23POSSIBLE MATCH
NOZZLE,VALVE
Possible match (shared part number)Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris
4820-01-251-829314953X3POSSIBLE MATCH
RING,BLOW DOWN,VALVE
Possible match (shared part number)Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris
4820-01-255-112216978-F PART 26JB10-120 62T72POSSIBLE MATCH
VALVE,SAFETY RELIEF
Possible match (shared part number)Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris
4820-01-259-220716978-F PART 26JB-120 62T72POSSIBLE MATCH
VALVE,SAFETY RELIEF
Possible match (shared part number)A. F. Brock & Co. Dba a. F. Brock & Co. / Ph, Inc
Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris (USA)
Reference documents
Reference
Meaning
16978-F
D/9Drawing number reference only
Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris
Related Parts
4820-01-251-7529POSSIBLE MATCH
RETAINER,DISK,VALVE
3405X6
4820-01-251-8292POSSIBLE MATCH
NOZZLE,VALVE
1472X23
4820-01-251-8293POSSIBLE MATCH
RING,BLOW DOWN,VALVE
14953X3
4820-01-255-1122POSSIBLE MATCH
VALVE,SAFETY RELIEF
16978-F PART 26JB10-120 62T72
4820-01-259-2207POSSIBLE MATCH
VALVE,SAFETY RELIEF
16978-F PART 26JB-120 62T72
Frequently Asked Questions
What is NSN 4820-01-251-7516?
NSN 4820-01-251-7516 is a Guide,valve Stem, manufactured by Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-251-7516?
NSN 4820-01-251-7516 has 2 manufacturer part numbers on file: 4182X9 (Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris), 16978-F PIECE 8 (Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris).
What NSN replaces 4820-01-251-7516?
5 possible matches (shared part number, not a government interchangeability claim): 4820-01-251-7529, 4820-01-251-8292, 4820-01-251-8293. Verify interchangeability with system specifications before substitution.
What are the specifications of 4182X9?
Key specifications for 4182X9: Special Features: LIQUID SERVICE; SET PRESSURE 68.0 PSI; MODEL 26JB10-120; Material: STEEL CORROSION RESISTING. 1 specification is documented in the U.S. Government catalog.
Is NSN 4820-01-251-7516 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.